231448911 has 8 divisors (see below), whose sum is σ = 309214080. Its totient is φ = 153991512.

The previous prime is 231448901. The next prime is 231448939. The reversal of 231448911 is 119844132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231448911 - 2⁵ = 231448879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231448901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75181 + ... + 78198.

It is an arithmetic number, because the mean of its divisors is an integer number (38651760).

Almost surely, 2^231448911 is an apocalyptic number.

231448911 is a deficient number, since it is larger than the sum of its proper divisors (77765169).

231448911 is a wasteful number, since it uses less digits than its factorization.

231448911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153885.

The product of its digits is 6912, while the sum is 33.

The square root of 231448911 is about 15213.4450733553. The cubic root of 231448911 is about 613.9764506595.

The spelling of 231448911 in words is "two hundred thirty-one million, four hundred forty-eight thousand, nine hundred eleven".